I'm a bit of a noob when it comes to fabrics and the terminology used to describe them.
I'm currently looking to pull the trigger on a good length (30+ yrds) of rip-stop nylon for a few projects, but without being able to physically see and touch the fabric, I'm at a loss as to what I need or want when ordering online.

Could some of the more experienced Hammock DIY guys give a quick break down of what fabrics would be used for what purpose?

I'm thinking something like;
Hammock: xx to xx denier rip-stop(xx denier preferred for lighter weight)
Fly/Tarp: xx to xx denier rip-stop (xx denier preferred)
stuff sac:
backpack:
etc

This should help those with lack of experience figure out what we're looking at and or pricing.